Iikomityi zephepha ezigqunywe nge-PE kunye ne-PLA zizinto ezimbini eziqhelekileyo zekomityi yephepha ezithengiswayo ngoku.Zinomahluko obalulekileyo malunga nokukhuselwa kwendalo, ukuphinda kusetyenziswe kunye nokuzinza.Eli nqaku liza kuhlulwa libe yimihlathi emithandathu ukuxoxa ngeempawu kunye nokungafani kwezi ntlobo zimbini zeekomityi zephepha ukubonisa impembelelo yazo ekuzinzeni kwendalo.
I-PE (i-polyethylene) kunye ne-PLA (i-polylactic acid) iikomityi zephepha ezigqunyiweyo zizinto ezimbini eziqhelekileyo zekomityi yephepha.Iikomityi zephepha ezigqunywe nge-PE zenziwe ngeplastiki yemveli ye-PE, ngelixa iikomityi zephepha ezigqunywe ngePLA zenziwe ngezinto zezityalo ezivuselelekayo zePLA.Eli nqaku lijolise ekuthelekiseni ulwahlulo ekukhuselweni kwendalo, ukuphinda kusetyenziswe kunye nokuzinza phakathi kwezi ntlobo zimbini zeiikomityi zephephaukunceda abantu ukuba benze ukhetho olungcono malunga nokusebenzisa iikomityi zephepha.
1. Ukuthelekiswa kokhuseleko lokusingqongileyo.Ngokubhekiselele kukhuseleko lokusingqongileyo, iikomityi zephepha ezigqunywe ngePLA zingcono nangakumbi.I-PLA, njenge-bioplastic, yenziwe ngezinto ezikrwada zezityalo.Ngokuthelekisa, iikomityi zephepha ezifakwe kwi-PE zifuna izixhobo zepetroleum njengezinto eziluhlaza, ezinempembelelo enkulu kokusingqongileyo.Ukusebenzisa iikomityi zephepha ezigqunywe ngePLA kunceda ukunciphisa ukuxhomekeka kumandla efosili kunye nokukhusela okusingqongileyo.
Uthelekiso ngokwemigaqo yokuphinda isetyenziswe.Ngokubhekiselele kwi-recyclability,Iikomityi zephepha ezigqunywe ngePLAzikwangcono kuneekomityi zephepha ezigqunywe yiPE.Ekubeni i-PLA iyinto enokubola, iikomityi zephepha ze-PLA zinokuphinda zisetyenziswe kwaye ziphinde zenziwe kwakhona kwiikomityi zephepha ze-PLA okanye ezinye iimveliso ze-bioplastic.Iikomityi zephepha ezigqunywe nge-PE kufuneka zidlule kwiinkqubo zobungcali zokuhlenga-hlengisa kunye nokucoca phambi kokuba ziphinde zisetyenziswe.Ke ngoko, iikomityi zephepha ezigqunywe ngePLA kulula ukuzisebenzisa kwakhona kwaye ziphinde zisetyenziswe, ngokuhambelana nengqikelelo yoqoqosho lwesetyhula.
3. Uthelekiso ngokwemiqathango yokuzinza.Xa kufikwa kuzinzo, iikomityi zephepha ezigqunywe ngePLA ziphinde zibe nesandla esiphezulu.Inkqubo yokwenziwa kwe-PLA isebenzisa izixhobo ezivuselelekayo, ezifana ne-cornstarch kunye nezinye izinto zezityalo, ngoko ke inempembelelo encinci kwindalo.Ukwenziwa kwe-PE kuxhomekeke kwimithombo yepetroleum encinci, ethi ibeke uxinzelelo olukhulu kokusingqongileyo.Ukongezelela, iikomityi zephepha ezifakwe kwi-PLA ziyakwazi ukuhla zibe ngamanzi kunye ne-carbon dioxide, zibangele ukungcola okuncinci kumhlaba kunye nemizimba yamanzi, kwaye zizinzileyo.
Iingqwalasela ezinxulumene nokusetyenziswa kwangempela.Ngokwembono yosetyenziso lokwenyani, kukwakho umahluko phakathi kweekomityi zephepha ezigqunywe nge-PE kunye neekomityi zephepha ezigqunywe ngePLA.Iikomityi zephepha ezigqunywe nge-PEzikwazi ukumelana nobushushu kwaye zikulungele ukupakisha iziselo ezishushu nezibandayo.Nangona kunjalo, izinto ze-PLA zivakalelwa ngakumbi kwiqondo lokushisa kwaye ayifanelekanga ukugcina ulwelo oluphezulu lobushushu, olunokubangela lula ukuba ikomityi ithambe kwaye iguqulwe.Ngoko ke, kufuneka kuthathelwe ingqalelo ukusetyenziswa okuthe ngqo xa ukhetha iikomityi zephepha.
Ukushwankathela, kukho iiyantlukwano ezicacileyo phakathi kweekomityi zephepha ezigqunywe nge-PE kunye neekomityi zephepha ezigqunywe yi-PLA ngokwemiqathango yokhuseleko lokusingqongileyo, ukuphinda kusetyenziswe kunye nokuzinza.Iikomityi zephepha ezigqunywe ngePLA zinokhuseleko olungcono lokusingqongileyo,ukusebenziseka kwakhona kunye nozinzo, kwaye okwangoku lukhetho olucetyiswayo kakhulu lokusingqongileyo.Nangona ukuxhathisa kobushushu bePLA iikomityi zephepha ezigqunywe ngephepha akulunganga njengaleyo yeekomityi zephepha ezigqunywe nge-PE, iingenelo zayo zingaphezulu lee kwizinto ezingeloncedo.Kufuneka sikhuthaze abantu ukuba basebenzise iikomityi zephepha ezigqunywe ngePLA ukukhuthaza uphuhliso oluzinzileyo.Xa ukhetha iikomityi zephepha, ingqwalasela ebanzi kufuneka yenziwe ngokusekelwe kwiimfuno ezithile, kunye nokusetyenziswaiikomityi zephepha ezisebenzisekayo kunye nezizinzileyokufuneka ixhaswe ngokusebenzayo.Ngokusebenza kunye, sinokwenza ukuba ikomityi yephepha isebenziseke ngakumbi indalo esingqongileyo, iphinde isetyenziswe kwaye igcineke.
Ixesha lokuposa: Sep-13-2023
